EAR PROTECTION DEVICE
- 专利权人:
- 发明人:
- Alan TIPP
- 申请号：
- US13899006
- 公开号：
- US20140007317A1
- 申请日:
- 2013.05.21
- 申请国别(地区):
- US
- 年份:
- 2014
- 代理人:
- 摘要：
- Various embodiments of ear protection devices are disclosed. In one embodiment, an ear protection device can include a frame. The frame can include several components, some of which are configured to move relative to each other.
- 来源网站：
- 中国工程科技知识中心
